Título: Electrochimica ActaImportada do Authenticus Pesquisar Publicações da Revista

Vol. 219

Páginas: 99-106

ISSN: 0013-4686

Editora: Elsevier

ISI Web of Knowledge - 5 Citações

ISI Web of Science

Scopus - 12 Citações

CORDIS: Ciências Físicas > Química > Química solar

ID Authenticus: P-00M-3SV

DOI: 10.1016/j.electacta.2016.09.142

Resumo (PT):

Abstract (EN): Solar energy harvesting and chromogenic technologies can be integrated together to give self-powered and wireless photoelectrochromic devices (PECD). Due to the similarity in the architecture of both dyesensitized solar cells (DSC) and electrochromic devices (ECD), it is possible to merge these two devices into one combined solar-powered electrochromic device known as DSC-EC. The present work describes the preparation and characterization of electrochromic solar cells using PEDOT:PSS (poly(3,4- ethylenedioxythiophene) polystyrene sulfonate) as electrochromic material in the counter-electrode. Different configurations and liquid and polymer-based electrolytes are studied. The resulting electrochromic solar cells were characterized focusing on the determination of solar to electricity conversion efficiency and the color contrast was assessed using color coordinates under simulated solar irradiation. The best DSC-EC configuration originates a color contrast of (DE = 30) at a potential difference of 0.4 V and energy conversion efficiency of 4.9% at VOC of 0.66 V and JSC of 11 mAcm
2 , when using the liquid electrolyte. On the other hand, the best performing DSC-EC using the polymer-based electrolyte showed a very good color contrast of (DE = 47) at short circuit and an energy conversion efficiency of 1% at VOC of 0.63V and JSC of 4.5 mAcm-2.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Notas: Journal Citation Reports

Nº de páginas: 8